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Finding the Fourth Proportional to 12,076.56, 18,133.20 and 11,482.56

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Solution

The fourth proportional to 12,076.56, 18,133.20 and 11,482.56 is: 17,241.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,076.56 : 18,133.20 = 11,482.56 : x
  2. Step 2: Convert to fraction form
    12,076.56/18,133.20 = 11,482.56/x
  3. Step 3: Cross multiply
    12,076.56x = 18,133.20 × 11,482.56
  4. Step 4: Simplify right side
    12,076.56x = 208,215,556.99
  5. Step 5: Solve for x
    x = 208,215,556.99/12,076.56
  6. Step 6: Final answer
    x = 17,241.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.